The syntypes were observed by de Blainville in Bullock's Pantherion or Museum and the Museum of the Royal College of Surgeons, both in London, UK. C. H. Smith (1827) suggested the specimens came from Guinea or Western Africa; Lydekker (1914b:148) stated that the type locality was probably Senegambia. These authors provided no evidence to support their conclusions and from the discussion in Sclater and Thomas (1898), it seems more probable that British hunters or collectors obtained Addax from the Tunisian Sahara, to which the type locality is here restricted.